How many parameters does GPT-5.6 Terra have?

Parameter count for GPT-5.6 Terra is not available. See the Hugging Face model page for full specifications.

Who created GPT-5.6 Terra?

GPT-5.6 Terra was published by OpenAI on Hugging Face.

GPT-5.6 Terra

Name: GPT-5.6 Terra
Author: OpenAI

Multimodalby OpenAI·Model page ↗

OpenAI's GPT-5.6 Terra, a multimodal model with 1M-token context for image, file, and text processing.

Max output

Most tokens the model can return in a single response.

128Ktokens

Pricing

per 1M tokens

Input$2.5 /1M

Output$15 /1M

Cache read$0.25 /1M

Cache write$3.13 /1M

Web search$0.01

Model Description

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...

Author

OpenAI

Organization · ✓

openai

Details

Downloads—

Likes—

AccessClosed Source

Context1.1M tokens

Input price$2.5 /1M

Output price$15 /1M

Knowledge cutoffFeb 16, 2026

CreatedJul 9, 2026

Updated—

View on Hugging Face

Benchmarks

Intelligence55.0

Coding76.7

Agentic47.4

Get the full context.